Am 11.12.20 um 16:58 schrieb Daniel Vetter:
At least amdgpu and i915 do, so lets just document this as the rule.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com Cc: Thomas Zimmermann tzimmermann@suse.de Cc: Sumit Semwal sumit.semwal@linaro.org Cc: "Christian König" christian.koenig@amd.com Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org
Reviewed-by: Christian König christian.koenig@amd.com
drivers/dma-buf/dma-buf.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index e1fa6c6f02c4..00d5afe904cc 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -1118,6 +1118,8 @@ int dma_buf_begin_cpu_access(struct dma_buf *dmabuf, if (WARN_ON(!dmabuf)) return -EINVAL;
- might_lock(&dma_buf->resv.lock);
- if (dmabuf->ops->begin_cpu_access) ret = dmabuf->ops->begin_cpu_access(dmabuf, direction);
@@ -1151,6 +1153,8 @@ int dma_buf_end_cpu_access(struct dma_buf *dmabuf, WARN_ON(!dmabuf);
- might_lock(&dma_buf->resv.lock);
- if (dmabuf->ops->end_cpu_access) ret = dmabuf->ops->end_cpu_access(dmabuf, direction);